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4. Jocelyn has a babysitting business. Based on daily sales figures for the past two years, she has developed the following probability distribution for X = daily profit (in dollars). Daily

profit x; Probability p 0 0.2 C. $13 d. $15 e. $18 | 10 0.4 20 0.3 Which of the following is the expected value of X? a. $3.25 b. $10 30 0.1

Fig: 1